Apparatus for magnetically cleaning cotton



1mm-1939. y w am f 2,163,242

APPARATUS EORl IAGNETIGALLY CLEANING COTTON F11-ed Anay 14, 2 51Min-Sheet 1 Fig. l

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June 20, 1939. 4 w. KAGAN A A 2,163,242V

APPARATUS FOR IAGNETICALLY CLEANING 601Mo v- Filed nay 14, 19:58 shuts-shut 2 PatentedJune 20, 19139 PATENT ori-ICE APPARATUS FOR. MGNETICAIiLY CLEANING COTTON William Kagan, St. Louis, Mo.

Application May 14, 1938, -Serial No.- 207,867

2 Claims.

This invention relates to means and methods for cleaning raw cotton, as freed from the bale and broken up in the willow machine and passed thence to the Garnett machine. Cotton as gathered and baled and then shippd, quite generally collects numbers of small particles and splinters of metal, including small nails and tacks, which particles if passed into the Garnett machine are very injurious to the teeth of that machine.

lo It is an important object of the present invention, therefore, to provide a means for eiiiciently separating from the loose cotton, as conveyed fromthe willow machine to the Garnett machine, all such metallic particles as may be involved therewith. Another object is to provide in combination with an air chute or tube for conveying the said cotton in loose and broken form from the willow to the Garnett machine where it is combed and processed, a closed boxlike magnetic chamber incorporated in and constituting part of this conduit, the said chamber or cabinet having arranged laterally therein two or more magnets with the pole faces vertically positioned in spaced relation, with means provided such as a suction fan for drawing the cotton stream vertically up through this chamber and between the said magnets, whereby due to the relative heaviness of the metal particles referred to, their upward movement is retarded as compared with that of the cotton itself, and this retardation enables the magnets to exercise their attractive force by drawing oif these particles to the poles of the magnets, where they adhere until the electric current operating the magnets is cut ofi', after which the accumulated particles` drop into a drawer or tray provided for that purpose.

With the foregoing and such other objects and advantages in view as may appear from the following specilcation, attention is now directed to the accompanying drawings, constituting part of the specication, and wherein:

Figure 1 is an assembly view of my invention as incorporated in operative association inter-r mediately of a willowvmachine and a Garnett machine,` in the processing of cotton. l

Figure 2 is an enlarged, perspective view of the main element of my invention, the magnetic housing and internal poles, a section of the housing being broken out to show the internal arrangement, sections of the lead in and lead out conduits being also shown.

Figure 3 is a top plan view of magnetic housing and internal integrally formed poles, the up`- per cover of the housing being removed.

Figure 4 is a plan view of a four pole structure and arrangement of magnets'in lieu of the bi-polar structure of the preceding forms shown.

Cotton as freed from the bale is ordinarily passed through a conveyor Aof some sort such -as 5 the tube 5 to the conventional willow machine 6 where it is further broken up into relatively small pieces or flakes, and `is passed thence directly into the Garnett machine 'I where it is combed with rotary toothedcombs and passed in the form of a ilatribbon 8 out onto a roll 9, ready for the market. The willow and Garnett maj chines are conventional structures .and hence further description is unnecessary here. The

f combs referred to of the Garnett machine comprise fine metallic points or spurs which are very liable to injury or destruction through metallic particles of any kind passing into said machine.

The present invention provides a simple and practical means for drawing out the said metal 20 particles from the cotton beforey the cotton enters the Garnett machine. The 'invention comprises a housing I0 built up of a plurality of laminations II of magnetic material such as silicon y iron, each one of the laminations being formed 25 to include two or more internally positioned pole webs or extensions such as indicated at I Ia-I Ib in Figure 3, or IIa-IIb-IIc-Iid in Figure 4, held positioned in an operative spaced relation by the integrally formed and laterally disposed connecting webs IIe. These laminations are laidl up in a conventional manner to complete the four walls of the structure, and the several poles are then woundin conventional manner with the windings I2 which are lconnected in series with any suitable source of electrical energy such as a generator (not shown). End covers I3 are then seated over the top and bottom ends of the structure as formed, thesecovers being apertured for engaging the open ends of pipes or conduits yI5 and I 6. The magnetic housing I0 with the poles formed therein as stated is positioned in the' conduit'line leading from the willow machine, this line being directed vertically as shownat I5 and the housing being located at a suitable point in the line so that the pole faces of the internal magnets will stand vertically and the intervening space between the magnets will constitute in practice a straight continuation of the conduit passage-Way. The upper pipe or conduit I6 leads from the upper side of the housing to a suction fan I 1 of conventional structure, and still another pipe extension I8 leads from the fan to an inclosed chamber I 9. A delivery conduit or pipe 20 leads from the bottom of the chamber I9 55 to' the Garnett machine which is represented generally at 1. The lower end of the pipe II is proare drawn aside to the poles of the magnets within the said housing. The particles accumulate on those poles and when the electric current is opened, they fall off and lodge upon theA door 2|, whence they may be cleaned oi as occasion may require.

While I have herein set forth and described a preferred embodiment of my invention, and have shown certain preferred structural features thereof, it is understood that I may vary from the same in minor details for the purpose Yof providing a practical apparatus for the purpose intended, not departing however from the essence of the invention as defined in the appended claims.

Iclaim: 1. In anv apparatus of the kind described, a

the lower end of the conduit, an electro-magnetic housing interposed in the conduit and forming a continuation of the conduit, thehousinghaving magnet poles protruded interiorly at opposite inner walls and in a spaced relation with the intervening space between the poles forming a vertical continuationoi' thel conduit, a blow chamber connected at the upper end of the conduit, a delivery conduit leading downward from the bottom of the blow chamber, and means for propelling a stream ofloose cotton upwardly through the conduit and magnetichousing into the blow chamber whenceit will` fall by gravity through the delivery conduit.

2. .In a structure as deilned in claim 1,'-a willow machine connected at the lower part of the vertical conduit for delivering loose cotton into the conduit, and a Garnett machine connected at, the lower end of the delivery conduit torreceiving the cotton from the blow chamber.-

WILLIAM KAGAN.

' vertically arranged conduit, a clean-out door at 

